The Proterozoic eon was the third eon in Earth history. It lasted from 2.5 billion years ago to 542 million years ago. Therefor, the Proterozoic was nearly 2 billion years long.
The Precambrian era spanned approximately 4 billion years, making it the longest geologic time period in Earth's history.
Began 5 billion years ago
Yes. The first era was the precambrian era followed by the paleozoic era then the mesozoic era than the Cenozoic era.
The Precambrian Era began in the time period 4600 and ended in 570.
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The Precambrian era was a geological period that spanned from about 4.6 billion years ago to around 541 million years ago. It encompasses the earliest part of Earth's history, including the formation of the planet and the evolution of life forms. The Precambrian era was followed by the Paleozoic era, which marked the beginning of complex life on Earth.
The Precambrian Eon represents about 88 percent of geologic time on Earth. This eon includes all time prior to the Paleozoic Era and spans from the formation of the Earth about 4.6 billion years ago to the beginning of the Paleozoic Era around 541 million years ago.
About 540 million years ago.
4,028,000,000 years.
The Precambrian Super-Eon is the informal name for the time on earth before the Cambrian Period. It lasted from 4,576 millions years ago until 542 million years ago, about 4.034 billion years.No geological era lasted as long. The longest era was the Paleoproterozic Era(2,500 - 1,600Ma) which lasted 900 million years.
The Precambrian is a long period and just as Earth has many climates now, it had many then.
The Precambrian era begins with the formation of Earth around 4.6 billion years ago. It is the longest geological time period, spanning from the formation of Earth to the beginning of the Paleozoic era about 541 million years ago.